Single Shot Pistol

This is my first instructables so please not offensive comments just constructive critisism. This is a single shot pistol loosly based on another gun I found on here. ~#* I am currently working on v 1.1 with a mag and better handle*#~

Step 1:

pic 1 : make this
pic 2 : make this

Step 2:

pic 1 : make this
pic 2 : make this

Step 3:

pic 1 : make this
pic 2 : make this
pic 3 : make this

Step 4:

pic 1 : put the 3 pieces ,shown in the pic, together to form this
pic 2 : put the other side on to this.

Step 5:

pic 1 : add one side of the casing
pic 2 : add the 2 pieces from step 2 to the gun
pic 3 : add the other side of the casing
pic 4 : the finished gun